1. Install the included nomep R package. On a Linux or OS X system,
simply navigate to the directory where the replication is package is
located, on the command line, and type:

> R CMD INSTALL nomep

Otherwise, see the R documentation for instructions on how to install
source packages using the install.packages() command.

2. Start R and navigate to this directory using the setwd() command.

3. Optionally, to refit the grades of measurement model, at the R
prompt, type:

> source("gom_fit.R", echo=T)

4. Optionally, save the newly fitted model (this will overwrite the
version that shipped with this replication package):

> save("posts/minreg6.RData")

5. To produce the graphs and results in the paper, at the R prompt,
type:

> source("results.R", echo=T)
